For months now i've been feeling overwhelmed with anger, sadness & hopelessness and aches n pains . lately i feel helpless and no interest in anything?

Depression: Depression can present many ways and a common presentation is anger , sleep disturbance , sadness, hopelessness and these feelings can lead to physical complaints as well. You need to see your doctor and talk about depression. :)

Severity: Get a psychiatric evaluation to determine severity of symptoms of what bothers you. Medications may be warranted. Also find a reputable psychotherapist to help you figure out what depression means to you, and how to better deal with it. Optimally medication and therapy together works best.